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Evaluating environmental quality in Rujigou coalfield, China, using analytic hierarchy process

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Abstract

Coal is the major fossil fuel used for power generation. Coal mining activities lead to environmental changes to a large extent, such as degradation in the quality of air, water, and soil, changes in landform, land use/land cover, and vegetation distribution. Evaluating the environmental quality is therefore essential to study the nature and impact of mining activities on the environment. The present study attempts to use the analytic hierarchy process (AHP) to assess the environmental quality of Rujigou coalfield that lacked previous such analysis. The criteria used for evaluation were selected through a literature review and extensive field survey. A photo tour of the study area shows the current ground conditions. Weights were assigned to these criteria based on expert opinions, recommendations from published literature, and field investigation. The results indicate that mining activities in the study region most significantly impact the air quality, followed by soil, water, landform, and vegetation. The knowledge of environmental quality can forewarn policymakers and mine managers about impending environmental problems and improve their ability to manage and resolve them. Moreover, the systematic methodological process described in this research can be applied to any study area with similar features to the one investigated in this paper.

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Acknowledgements

The authors gratefully acknowledge the financial support provided by the National Natural Science Foundation of China (NSFC Grant No. 51850410504). The access granted to the coalfields for our field investigation is also acknowledged with thanks. The authors thank the USGS (http://earthexplorer.usgs.gov/) for providing the Landsat data used in this work free of cost through the internet. Due acknowledgement is provided to the anonymous reviewers whose comments greatly improved the manuscript.

Funding

This work was supported by the National Natural Science Foundation of China (NSFC Grant No. 51850410504).

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Authors and Affiliations

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Contributions

Conceptualisation: [Varinder Saini]; Data curation: [Varinder Saini, Yinan Yang, Jinsong Li]; Formal analysis: [Varinder Saini]; Funding acquisition: [Jun Li]; Investigation: [Varinder Saini, Jun Li, Yinan Yang, Jinsong Li]; Methodology: [Varinder Saini]; Project administration: [Jun Li]; Resources: [Jun Li]; Software: [Varinder Saini]; Supervision: [Jun Li]; Visualisation: [Varinder Saini]; Writing—original draft: [Varinder Saini]. All authors read and approved the final manuscript.

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Correspondence to Varinder Saini.

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The authors declare no competing interests.

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Responsible Editor: Philippe Garrigues

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Appendix

Appendix

Table

Table 2 Scale given by Saaty (1977) for pairwise comparison

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Table

Table 3 Random index given by Saaty (1980, 2000)

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Saini, V., Li, J., Yang, Y. et al. Evaluating environmental quality in Rujigou coalfield, China, using analytic hierarchy process. Environ Sci Pollut Res 30, 1841–1853 (2023). https://doi.org/10.1007/s11356-022-22340-1

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  • DOI: https://doi.org/10.1007/s11356-022-22340-1

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